<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            display: flex;
            text-align: center;
        }
    </style>
</head>

<body>
    <div class="list">

    </div>
    <button class="prev">上一页</button>
    <button class="next">下一页</button>
</body>

</html>
<script src="./promise-ajax.js"></script>
<script>
    var page = 1
    document.querySelector('.prev').onclick = function () {
        if (page > 1) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: --page, count: 10 }).then((data) => {
                var str = data.emotions.map((item, index) => {
                    return `<div> <img src="${item.url}" /> <div> ${item.title} </div> </div>`
                }).join('')
                //渲染表情
                document.querySelector('.list').innerHTML = str;
            })
        }
    }
    document.querySelector('.next').onclick = function(){
            if( page < 4 ){
                ajax('get',`https://yantianfeng.com/api/emotion`, {page:++page,count:10} ).then((data)=>{
                    // console.log(data);
                    var str = data.emotions.map((item,index)=>{
                        return `<div> <img src="${item.url}" /> <div> ${item.title} </div> </div>`
                    }).join('')
                    //渲染表情
                    document.querySelector('.list').innerHTML = str;
                });
            }
        }
</script>